Save Venice took over The Pierre on Friday night for its annual Un Ballo in Maschera, transforming the hotel's grand ballroom into an enchanted garden. And thanks to sponsor Dolce & Gabbana, there was enough moda Italiano on display to make the evening feel authentically Italian. Guests ranged from stalwart philanthropists like Adelina Wong Ettelson and Gillian Miniter—one woman called this her "oh, fifth, sixth, or tenth Save Venice"—to newcomers such as Public School's Maxwell Osborne and Dao-Yi Chow, whose slim black suits were a cool counterpoint to some of the evening's more decadent costumes. "We don't really do much women's evening right now, but seeing all of this, who knows," said Osborne. "We're not quite there yet, but when we are, we'll do it our way."

Other designers shared their tips for gala season dressing. "Don't take your shoes off to dance, don't be that girl," Brian Atwood advised, right before one overzealous dancer dropped her champagne flute on the dance floor. Tabitha Simmons suggested to "be prepared like a Boy Scout, you never know where the evening will take you!" And this from Bibhu Mohapatra: "The secret is to not reveal the ultimate surprise. Make sure there is something for the person next to you to discover." DJ performances from Mia Moretti, Caitlin Moe, and May Kwok kept partygoers dancing until well after midnight. The evening raised $700,000 for Save Venice's mission of restoring art and architecture in the canal city.